Estimating Energy Expenditure During Active Virtual Reality Gaming

2021 ◽  
pp. 66-73
Author(s):  
Julissa Ortiz-Delatorre ◽  
Ryan P. Durk ◽  
Alexandra Esparza ◽  
Adriana Ruiz ◽  
Maria Jericka Doaz ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Energy Expenditure

scholarly journals Effect Of Exercise Setting On Energy Expenditure And Enjoyment During Active Virtual Reality Gaming

2020 ◽  
Vol 52 (7S) ◽  
pp. 37-37
Author(s):  
Trenton Huynh Stewart ◽  
Kirsten Villanueva ◽  
Amanda Hahn ◽  
Julissa Ortiz ◽  
Chandler Wolf ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Energy Expenditure

Physiological Demand, Metabolic Requirements, and User-Perceived Exertion of Immersive Virtual Reality Exergaming Incorporating an Adaptive Cable Resistance System: An Exploratory Study (Preprint)

2021 ◽  
Author(s):  
Jonathan Hu ◽  
Jonathan D Browne ◽  
Michael T Arnold ◽  
Anthony Robinson ◽  
Marin F Heacock ◽  
...  
Keyword(s):  
Physical Activity ◽  
Heart Rate ◽  
Virtual Reality ◽  
Energy Expenditure ◽  
Perceived Exertion ◽  
Rating Of Perceived Exertion ◽  
Immersive Virtual Reality ◽  
Metabolic Equivalents ◽  
Physiological Demand ◽  
Resistance System

BACKGROUND The intersection of games and exercise has sparked the growth of novel training systems with the potential to promote quality physical activity. Innovations in Immersive Virtual Reality (IVR) have propelled “exergaming” to the forefront of the fitness landscape. Researchers have yet to fully explore the physiological and metabolic efficacy and applications of the immersive environment and interactive programming. OBJECTIVE This study aimed to measure metabolic (i.e., energy expenditure (EE)) and physiological (i.e., heart rate (HR)) demands and subjective fatigue and enjoyment scores during a signature 30-minute IVR adaptive cable resistance exergaming session. METHODS Fourteen healthy, college-aged individuals (7 females) were initially acquainted with the equipment and acclimated to the virtual reality and gameplay dynamics. Participants then completed a signature 30-minute exergaming session using an IVR adaptive cable resistance system (Black Box VR ®) that incorporated chest press, squat, row, lat pulldown, overhead press, and stiff leg deadlift. During the session, a portable metabolic gas exchange analysis system assessed energy expenditure by indirect calorimetry and a chest-worn monitor captured heart rate. Immediately following the session, participants completed questionnaires including the Borg scale for Rating of Perceived Exertion (RPE), the Physical Activity Enjoyment Scale (PACES), and the Simulator Sickness Questionnaire (SSQ). RESULTS EE was greater in males compared to females in terms of kcal/min (P = 0.001), total kcal (P = 0.001), and metabolic equivalents (P = 0.029). Females demonstrated a higher average HR (P = 0.020) and HR as a percentage of theoretical HRmax (P = 0.018). The overall mean metabolic equivalent (MET) during the session was 12.9 (0.5). Men achieved greater volume of total weight lifted during the session (P < 0.001) and with chest press (P = 0.005), overhead press (P = 0.001), stiff-leg deadlift (P = 0.002), and squat (P = 0.015). For the questionnaires, the mean (SD) of RPE, PACES and SSQ was 14 (1), 4.31 (0.36) and 24.04 (24.13), respectively. CONCLUSIONS IVR exergaming with resistance cable training elicits substantial EE and very high physiological demand while attenuating perceived psychological and physical fatigue. Further investigations of IVR utility should explore nuanced muscle recruitment patterns during training and long-term regimen adherence.

scholarly journals Influence of Perceptual-Motor Calibration on the Perception of Geographical Slope

Perception ◽  
2020 ◽  
Vol 49 (6) ◽  
pp. 688-692
Author(s):  
Sally A. Linkenauger ◽  
Megan Rose Readman
Keyword(s):  
Virtual Reality ◽  
Energy Expenditure ◽  
Optic Flow ◽  
Physiological State ◽  
Geographical Slant ◽  
Influence Perceptions

Individuals drastically overestimate geographic slant. Research has suggested this occurs as the amount of energy it would take to ascend the slope modulates the perceived steepness. Numerous studies have provided evidence that alterations in current physiological potential can influence perceptions of geographical slant. However, it is unclear whether these influences are solely due to one’s actual physiological state or whether anticipation of energy expenditure also influences perceived slope. To investigate this, we manipulated anticipated energy expenditure while maintaining actual physiological state by altering the coupling between optic flow and gait. Using virtual reality, we calibrated individuals to either large changes (low anticipated expenditure) or small changes (large anticipated expenditure) in optic flow when walking at the same speed. Following optic flow calibration, individuals estimated slopes of various degrees. The results obtained provide evidence that perceptions of geographical slant are influenced by anticipated energy expenditure.

scholarly journals Virtual Reality Gaming Elevates Heart Rate but Not Energy Expenditure Compared to Conventional Exercise in Adult Males

2019 ◽  
Vol 16 (22) ◽  
pp. 4406 ◽  
Author(s):  
Théo Perrin ◽  
Charles Faure ◽  
Kévin Nay ◽  
Giammaria Cattozzo ◽  
Anthony Sorel ◽  
...  
Keyword(s):  
Heart Rate ◽  
Virtual Reality ◽  
Energy Expenditure ◽  
Physical Load ◽  
Activity Levels ◽  
Adult Males ◽  
Effective Measure ◽  
Differential Outcomes ◽  
Active Gaming ◽  
Head Mounted Displays

Virtual reality using head-mounted displays (HMD) could provide enhanced physical load during active gaming (AG) compared to traditional displays. We aimed to compare the physical load elicited by conventional exercise and AG with an HMD. We measured energy expenditure (EE) and heart rate (HR) in nine healthy men (age: 27 ± 5 years) performing three testing components in a randomised order: walking at 6 km/h (W6), AG, and AG with an additional constraint (AGW; wrist-worn weights). Although we found that HR was not significantly different between W6 and the two modes of AG, actual energy expenditure was consistently lower in AG and AGW compared to W6. We observed that playing AG with wrist-worn weights could be used as a means of increasing energy expenditure only at maximum game level, but ineffective otherwise. Our findings indicate that AG in an HMD may not provide a sufficient stimulus to meet recommended physical activity levels despite increased psychophysiological load. The differential outcomes of measures of HR and EE indicates that HR should not be used as an indicator of EE in AG. Yet, adding a simple constraint (wrist-worn weights) proved to be a simple and effective measure to increase EE during AG.

A compendium of G-protein–coupled receptors and cyclic nucleotide regulation of adipose tissue metabolism and energy expenditure

2020 ◽  
Vol 134 (5) ◽  
pp. 473-512 ◽  
Author(s):  
Ryan P. Ceddia ◽  
Sheila Collins
Keyword(s):  
Adipose Tissue ◽  
Energy Expenditure ◽  
Signaling Pathways ◽  
G Protein ◽  
Uncoupling Protein ◽  
Beige Adipocytes ◽  
Nucleotide Regulation ◽  
Ucp1 Expression ◽  
Thermogenic Adipocytes ◽  
G Protein Coupled

Abstract With the ever-increasing burden of obesity and Type 2 diabetes, it is generally acknowledged that there remains a need for developing new therapeutics. One potential mechanism to combat obesity is to raise energy expenditure via increasing the amount of uncoupled respiration from the mitochondria-rich brown and beige adipocytes. With the recent appreciation of thermogenic adipocytes in humans, much effort is being made to elucidate the signaling pathways that regulate the browning of adipose tissue. In this review, we focus on the ligand–receptor signaling pathways that influence the cyclic nucleotides, cAMP and cGMP, in adipocytes. We chose to focus on G-protein–coupled receptor (GPCR), guanylyl cyclase and phosphodiesterase regulation of adipocytes because they are the targets of a large proportion of all currently available therapeutics. Furthermore, there is a large overlap in their signaling pathways, as signaling events that raise cAMP or cGMP generally increase adipocyte lipolysis and cause changes that are commonly referred to as browning: increasing mitochondrial biogenesis, uncoupling protein 1 (UCP1) expression and respiration.

Top-Down Processing and Visual Reorientation Illusions in a Virtual Reality Environment

2004 ◽  
Vol 63 (3) ◽  
pp. 143-149 ◽  
Author(s):  
Fred W. Mast ◽  
Charles M. Oman
Keyword(s):  
Virtual Reality ◽  
Visual Processing ◽  
Line Length ◽  
Perceptual Cues ◽  
Virtual Reality Environment ◽  
Top Down ◽  
Test Conditions ◽  
The Subject ◽  
Processing Mechanisms

The role of top-down processing on the horizontal-vertical line length illusion was examined by means of an ambiguous room with dual visual verticals. In one of the test conditions, the subjects were cued to one of the two verticals and were instructed to cognitively reassign the apparent vertical to the cued orientation. When they have mentally adjusted their perception, two lines in a plus sign configuration appeared and the subjects had to evaluate which line was longer. The results showed that the line length appeared longer when it was aligned with the direction of the vertical currently perceived by the subject. This study provides a demonstration that top-down processing influences lower level visual processing mechanisms. In another test condition, the subjects had all perceptual cues available and the influence was even stronger.

Laparoscopic Cholecystectomy

Swiss Surgery ◽  
2002 ◽  
Vol 8 (6) ◽  
pp. 250-254
Author(s):  
Vogelbach ◽  
Bogdan ◽  
Rosenthal ◽  
Pfefferkorn ◽  
Triponez
Keyword(s):  
Virtual Reality ◽  
Laparoscopic Cholecystectomy ◽  
Neue Technik

Fragestellung: Die dieser Untersuchung zugrunde liegende Frage war, ob das angewandte Ausbildungskonzept geeignet war, um am Beispiel der Einführung der laparoskopischen Cholezystektomie eine neue Operationsmethode in einer universitären Ausbildungsklinik mit einer grossen Anzahl Chirurgen zu etablieren. Patienten und Methodik: Seit Einführung der ersten laparoskopischen Cholezystektomie wurden alle Cholezystektomien während zwei Jahren (Mai 1990 bis Mai 1992) prospektiv erfasst. Ein Ausbildungskonzept wurde gewählt, bei dem jeweils ein Operateur durch einen Tutor geschult wurde und so 15 konsekutive Eingriffe durchführte, um dann die Technik einem weiteren auszubildenden Chirurgen zu instruieren. Resultate: In zwei Jahren wurden 355 Patienten cholezystektomiert. 60% der Operationen wurden laparoskopisch durchgeführt oder begonnen. 40% der Operationen wurden offen durchgeführt. In den ersten zwei Jahren konnten 13 Operateure (durchschnittlich 16 Operationen / Operateur , range 1 - 60) in die neue Technik eingeführt werden. Es traten keine schweren Komplikationen, insbesondere keine Gallenwegsverletzungen in dieser Einführungsphase auf. Diskussion: In der Literatur wird dieses Vorgehen bei der Einführungsphase seit 1992 wiederholt vorgestellt, diskutiert und empfohlen. Zwischenzeitlich gibt es Richtlinien von Fachgesellschaften und nationalen Institutionen, welche die Ausbildung zur Ausführung neuer chirurgischer Techniken reglementieren. In den letzten Jahren verlagern sich die ersten Ausbildungsschritte in Richtung Trainingskurse an skill-stations und virtual reality Trainer. Schlussfolgerung: Das beschriebene Ausbildungskonzept bewährte sich in der Einführungsphase der laparoskopischen Cholezystektomie zu Beginn der 90er-Jahre.

Virtual reality-enabled treatment of nightmares.

Dreaming ◽  
2018 ◽  
Vol 28 (3) ◽  
pp. 205-224 ◽  
Author(s):  
Patrick McNamara ◽  
Kendra Holt Moore ◽  
Yiannis Papelis ◽  
Saikou Diallo ◽  
Wesley J. Wildman
Keyword(s):  
Virtual Reality
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